Automatic warp stop-motion for warpers.



PATENTED JAN. 3, 1905.

-A. S. GOWAN AUTOMATIC WARP STOP MOTION FOR WARPERS.

APPLICATION FILED MAE. 9, 1904.

2 SHBETSSHEET L No. 779,073. PATENTED JAN. 3, 1905.

A. S. OOWAN. AUTOMATIG WARP STOP MOTION FOR WARPERS.

APPLIOATION FILED MAR. 9, 1904.

2 SHEETS-SHEET 2.

UNTTED STATES Patented January 3, 1905.

PATENT Orrion.

ARTHUR S. COWAN, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO CROMPTON 8: KNOWLES LOOM WORKS, OF WORCESTER, MASSA- CHUSETTS, A CORPORATION OF MASSACHUSETTS.

AUTOMATIC WARP STOP-MOTION FOR WARPERS- SPECIFICATION forming part of Letters Patent No. 779,073, dated January 3, 1905.

Application filed March 9,

1'0 (M6 w/wm it may concern:

Be it known that I, ARTHUR S. OowAN, a citizen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Automatic Warp Stop-Motions for VVarpers, of which the following is a specification.

My invention relates to an automatic warp stop-motion for warpers; and the object of my invention is to provide an improved automatic warp stop-motion; and my invention consists in certain novel features of construction of my improvements, as will be hereinafter'fully described.

In my improvements as shown in the drawings and described herein the dropping of adrop-wire when a warp breaks will stop the movement of a reciprocating slide-plate and put into operation mechanism for moving the beam away from the drum, as will be hereinafter described.

I have only shown in the drawings sufficient parts of a warper of well-known construction, with my improvements applied thereto, to enable those skilled in the art to which my invention belongs to understand the construction and operation thereof.

Referring to the drawings, Figure 1 shows a sectional front view of portions of a warper with my improvements applied thereto looking in the direction of arrow a, Fig. 2. Fig. 2 is a plan view of some of the parts shown in Fig. 1 looking in the direction of arrow t, same figure. The table is shown broken away. Fig. 3 is a sectional view of some of the parts shown at the left in Fig. 1 detached and. ma different position. Fig. 4 shows some of the parts shown at the right in Fig. 2 in a different position. Fig. 5 is a detached detail showing the fork-stand and the levers look ing in the direction of arrow 0, Fig. 1; and Fig. 6 is a sectional detail on line 6 6, Fig. 4:, looking in the direction of arrow d, same figure.

In the accompanying drawings, 1 is the main frame or stand for supporting the several parts.

1904. Serial No. 197,292.

| 2 isa table supported at one end by the frame 1.

3 is the drum, and 4: the drum-shaft, mounted in suitable bearings on the framel and having a revolving motion communicated thereto from some driven part to cause the drum 3 to revolve in the ordinary way.

The warp beam or spool 5, upon which the warp 6 is wound, has rotary motion communicated thereto by frictional engagement with the periphery of the drum 3 in the ordinary way. The swinging or pivoted frame or hanger which supports the warp-beam 5 is ordinarily made in one part, which is pivotally connected with the yoke-shaped end 7 of the vertically-moving upright lever 7, having weights 8 on its lower end and pivotally connected with an extension 9 on the foot-treadle 9, mounted on the transverse rod 10; but in warp-beam ismade in two parts. The upper ends of the yoke-shaped end 7 of the lever 7 are pivotally connected by pins 11 with one end of two arms 12. The other ends of said arms 12 are pivotally mounted on a rod 13. The arms 12 have downwardly extending parts 12, in the lower ends of which is supported a rod 13. (See Fig. 3.) The rod 13 forms the pivot-rod for the arms 12 and the parts connected therewith. The warp-beam hanger 14 is made separate from the arms 12 and is pivotally connected with the pins 11 and has a yoke-shaped end to receive the warpbeam 5, which in this instance has pins15 extending out from its end to fit into recesses in the hanger-arms and be held thereon by latches 15.

Pivotally connected with the two arms of the hanger 14 by pins 16, intermediate the ends of the arms 12 and the warp-beam 5, is the yoke-shaped end of the sustaining-lever 17, which has a rearwardly-extending curved arm 17'. Upon the under side of the arm 17 is a toothed surface 17 adapted to engage a toothed projection 18 on a shoe 18, fast on a transverse rod 19, as shown. The arm 17 of the sustaining-lever 17 has a plate 17" atmy improvements the frame supporting the tached thereto, the lower edge of which is adapted to rest on a roll 20 on a stud 20, held by a nut 20 in the slotted end 21 of the sup- I will now describe my improvements in the warp stop-motion for automatically moving the warp-beam out of contact with the I drum 3 on the breaking of a warp-thread.

The warp-threads 6 pass 'over a series of transverse rods 22, mounted at each end on a stand 23 on the table 2. On each warp-thread is suspended a drop-wire 24. In this instance the drop-wires 24 are arranged in four series and made in the form of hooks, as shown in Fig. 1. The lower ends of the drop-wires 24 extend down between the guide-bars 25, secured at their ends to the stands 23. Extending directly below the transverse guide-bars 25 is a plate 26, (see Figs. -2 and 4,) having in this instance four longitudinal openings 26' therethrough, corresponding to the number of sets of drop-wires 24. The openings 26 in the plate 26 extend in the same direction as the guide-bars 25, and said openings 26 are adapted as the plate reciprocates to pass directly under and in the path of the drop-wires 24, so that on the breaking of a warp-thread and the dropping of the wire 24 thereon the lower end of the wire will pass through one of the openings 26' in the plate 26 and between the lower set of transverse guide-bars 25, supported directly below the plate 26, and thus arrest the motion of said plate and through intermediate mechanism to be hereinafter described automatically move the warp-beam '5 out of engagement with the drum 3.

The plate 26 is attached to and supported on a reciprocating rod 27, mounted in bearings 28,secured to the upper side of the table 2. On the rod 27 is fast the head 29 of a pin 29. The lower end of said pin 29 is pivotally connected with the end of an arm 30, the hub 30 of which is fast on the upper end of a stud 31, which is loosely mounted in a boss 31, which extends through and is secured in an opening in the table 2. (See Fig. 6.)

Fast on the lower end of the stud 31 is the hub 32 of an arm 32, which carries a pin 33, on which is pivotally mounted the hub 34 of a lever 34. The hub 32 has extending down therefrom projections 32",in which is supported a spring-actuated pin 35, having an enlarged end 35, which is adapted to bear against a flat portion 34 on the hub 34' of the lever 34. (See Fig. 4.) A small spiral spring 36 encircles the pin 35 between the projections 32, as shown in Fig. 6, and actuates the pin 35. One end of the lever 34 has during normal working conditions by contact with surface an opened end slot 34 therein to receive a 5 pin 37 on the horizontally-moving rod 37,- supported and having a bearing in a bracket 38, secured to the under side of the table 2, as shown in Fig. 1. The end of the rod 37 is pivotally connected with the forked end 39 of the eccentric-rod 39, attached to the eccentric 40 on the drum-shaft 4. Through the eccentric 40, eccentric-rod 39, rod 37, lever 34, leverarm 32, stud 31, lever-arm 30, and pin 29 reciprocating motion is communicated, through the rod 27, to the plate 26, the spring-actuated pin 35 acting to hold thelever 34 inaline with the lever-arm 32, as shown in Fig. 2, to move as a single lever. To the opposite end of the lever 34 from the opened slotted end 34. is pivotally attached by a pin 41 a rod 42, having a horizontal reciprocating motion in a hanger 43, secured to the under side of the. table 2. (See Fig.1.) It will of course be obvious that the reciprocation of rod 42 is not constant, but only occurs when the plate 26 is stopped by a drop device and part 30 can no longer move.

On the rod 42 are two enlarged portions 42, which are adapted to engage the forked ends of, the two angle-levers 43 and 44, pi'v oted, respectively, on pins 45 and 46 under the table 2. The angle-levers 43 and 44 are connected by a pin-and-slot connection at one end, as shown at 47, to have a simultaneous motion. The other ends of the levers 43 and 44 are made forked-shaped or slotted to receive the longitudinally-moving rod 42, as shown. To the slotted end of the angle-lever 44 is pivotally attached by a pin 48 one end of a rod 49. The other end of said rod 49 is pivotally attached to a crank-arm 50, fast on a rock-shaft 51, mounted in suitable bearings on stands 52, secured to the upper part of the frame 1. (See Figs. 1 and 3.) Extending up from and fast on the rock-shaft 5,1 is an arm 53, which is connected by a link 54 with an arm 55, loose on the rod 13. On the rod 13' is also loosely mounted an arm 56, connected bya link 57 witha rearwardly-extending projection 14 on the hanger 14. The arm 56 is adapted to be engaged by a projection on the arm 55.

From the above description, in connection with the drawings, the operation of my warp stop-motion for automatically moving the warp-beam from the drum upon the breaking of a warp-thread will be readily understood by those skilled in the art. The means for supporting the warp-beam 5 will be in the position shown in Fig. 1, with the beam 5 in frictional contact with the drum 3 and held there by the weights on the lever 7 in the ordinary way. The rod 13 forms the pivot for the arms 12 and for the hanger 14 of the warp-beam 5, and thepivoted arms, &c., are held in the position shown in Fig. 1. The

revolution of the shaft 4 through eccentric IIO 40 and intermediate connections gives a reciprocating motion to the plate 26 under the drop-wires 24. On the breaking of a warpthread and the dropping of a wire 24 the lower end of the wire will enter one of the openings 26 in the plate 26 and one of the openings between the lower set of guide-bars 25, and thus prevent the continued reciprocating motion of said plate; but the continued rotary motion of the eccentric 40 through eccentric-rod 39 and the rod 37 will move the lever 34 against the action of the spring-actuated pin 35 into the position shown in Fig. 4 and through rod 42 and the knob 42 thereon engaging the lever 43 will move said lever 43 and also the lever 44, as shown in Fig. 4, and through the rod 49 move the crank-arm 50, rock-shaft 51, arm 53, link 54, and arm 55. The movement of the arm 55 will cause the projection 55 thereon to engage the arm 56 and move said arm and link 57, connected with the projection 14 on the hanger 14, from the position shown in Fig. 1 to the position shown in Fig. 3, and the toothed portion 17 on the lever 17 will engage the stop 18 on the shoe 18. As the arm 56 and link 57 are moving from the position shown inFig. 1 to the position shown in Fig. 3 the action of the weights carried by the lever 7 causes the warp-beam 5 to be raised from the drum 3, as shown in Fig. 3. The arm 17 is held by the teeth 17 thereon engaging the projection 18 on the shoe 18. After the broken warp-thread has been fixed the attendant operates the foottreadle 9 to raise the weights 8 and the lever 7, and at the same time he operates the arm 17 to disengage the teeth 17 from the projcction 18 and cause the pivot or fulcrum of the hanger 14 of the warp-beam 5 to shift from the pins 16 to the rod 13 and the arms and connections to change from the position shown in Fig. 3 to the position shown in Fig. 1 preparatory to the continued operation of the warper.

It will be understood that the details of construction of improvements may be varied, if desired, and they may be adaptedto be used on other machines, if desired.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a warper or winding-machine, a frame for supporting a beam or spool, a movable support for the fulcrum for said frame, drop devices supported on the warp-threads, a plate having a reciprocating movement under said drop devices, means for moving said plate, connections intermediate said plate and the beam-supporting frame, to cause the moving of the beam from its driving-surface on the stopping of the plate by one of the drop devices, substantially as shown and described.

2. In a warper or Winding-machine, a frame for supporting a beam or spool, movable arms upon which said frame is pivotally mounted, drop devices supported on the Warp-threads, a plate, means for reciprocating the plate under said drop devices, and connections intermediate said plate and the said supportingframe, to cause said frame to be moved upon its pivotal mounting to raise the beam or spool onthe stopping of the plate by a drop device.

3. In awarper or winding-machine, a warpbeam hanger, arms separate from said hanger and upon which said hanger is pivotally mounted, a rod upon which said arms are pivotally mounted, drop devices supported by the unbroken warp-threads, a plate, means for reciprocating said plate across the path of movement of a drop device when freed from a warp-thread, and connections intermediate said plate and said warp-beam hanger to cause the latter to be moved and raise the beam or spool on the stopping of the plate by a drop device.

4. In a warper or winding-machine, a drum, a warp-beam hanger,pivotally-mounted arms upon which the hanger is mounted to turn or swing, weights connected to said arms for holding the beam in contact with the drum, drop devices supported on the warp-threads, a plate having a reciprocating movement under the drop devices, means for operating said plate, connections intermediate the plate and warp-beam hanger to cause the hanger to be swung upon the said arms when the plate is stopped by a drop device.

5. In a warper or winding-machine, a drum, a warp-beam hanger, pivotally-mounted arms upon which said hanger is mounted to swing, weights connected to said pivotally-mounted arms to hold the beam in contact with the drum, a sustaining-lever connected to the warp-beam hanger, drop devices supported by the warp-threads, a plate having a reciprocating movement under said drop devices, means for operating said plate, and connections intermediate said plate and the warp beam hanger to cause the beam to be moved from the drum on the stopping of the plate by a drop device.

J. C. DEWEY, M. HAAS. 

